Commutative Property of Multiplication
Commutative property of multiplication:
` huge color(purple)(a times b=b times a) `
What does it mean?
It means, that order of numbers doesn't matter.
Indeed, as can be seen from illustration, we can count there are 3 circles in a row, and there are 2 rows, so total number of squares is `3times2=6`.
From another side, we can rotate picture and count circles in another way: 3 rows, and in each row 2 circles: `2times3=6`.
Warning: it doesn't work with division, i.e. `a/b!=b/a`.
For example, `3/2!=2/3`.
Example 1. `3 times (-4)=(-4) times 3=-12`.
Example 2. `(-2.51) times (-3.4)=(-3.4) times (-2.51)`.
Example 3. `-5/8 times 2/3=(-5/8) times 2/3=-5/12`.
Conclusion. So, the basic rule here is following: whenever you see multiplication, you can interchange factors.